Agitator Repair Kit
If the washer won't agitate, replacing the agitator repair kit may solve the problem. The kit contains the agitator components that are most likely to wear out and/or fail. If any of the parts are worn out, stripped, or damaged, replace the kit.
Drive Block or Bell
The drive block connects the washer transmission to the agitator. If the drive block is worn out, the transmission shaft will still move back and forth, but the agitator will only move slightly or will not move at all. Inspect the drive block for damage. If the drive block is worn out, stripped, or damaged, replace it.
The motor coupling connects the motor to the washer transmission. If the washer is overloaded, the motor coupling will fail in order to protect both the motor and transmission. The motor coupling can also fail due to normal wear. Inspect the motor coupling to determine if it is broken. If the motor coupling is broken, replace it.